APA

Climate Prediction Center (NCEP), . (2007). El Niño/Southern oscillation (ENSO) diagnostic discussion. Camp Springs, MD, USA: Climate Prediction Center (NCEP).

Chicago

Climate Prediction Center (NCEP), . 2007. El Niño/Southern oscillation (ENSO) diagnostic discussion. Camp Springs, MD, USA: Climate Prediction Center (NCEP).

Harvard

Climate Prediction Center (NCEP), . (2007). El Niño/Southern oscillation (ENSO) diagnostic discussion. Camp Springs, MD, USA: Climate Prediction Center (NCEP).

MLA

Climate Prediction Center (NCEP), . El Niño/Southern oscillation (ENSO) diagnostic discussion. Camp Springs, MD, USA: Climate Prediction Center (NCEP). 2007.